CREATING AN IMAGE USING ENCRYPTED SENSITIVE WORDS
|
|
- Anthony Ferguson
- 6 years ago
- Views:
Transcription
1 CREATING AN IMAGE USING ENCRYPTED SENSITIVE WORDS Reshmi.R.V Student, Dept. of Information Technology, CSI College Of Engineering, India ABSTRACT--Data hiding is one of the most better data and communication protection by hiding information into a media carrier technology called as stegnography. The actual information is not maintained in its original format is known as cryptography. In our daily life we are sending message through , mobiles, social medias etc But sometimes the unauthorized person (hackers) will easily hack our secret message. Now days it s very difficult to send a secret message from sender to receiver. To provide the solution to this problem this paper provides a high security for sending the secret message from sender to receiver. This paper shows the method of creating an image using encrypted sensitive words. Mainly two methods are used in this Stegnography, Cryptography. This application mainly used in defense, business, etc for sending secret message more securely. Keywords Stegnography, Cryptography, Encryption. 1. INTRODUCTION Currently, Internet and digital media are getting more and more popular. So, requirement of secure transmission of data also increased. Various good techniques are proposed and already taken into practice. Data Hiding is the process of secretly embedding information inside a data source without changing its perceptual quality. Data Hiding is the art and science of writing hidden messages in such a way that no one apart from the sender and intended recipient even realizes there is a hidden message. Generally, in Data Hiding, the actual information is not maintained in its original format and thereby it is converted into an alternative equivalent multimedia file like image, video or audio which in turn is being hidden within another object. This apparent message is sent through the network to the recipient, where the actual message is separated from it. The requirements of any data hiding system can be categorized into security, capacity and robustness. All these factors are inversely proportional to each other so called data hiding dilemma. The focus of this paper aims at maximizing the first two factors of data hiding i.e. security and capacity coupled with alteration detection. The proposed scheme shows the method of creating an image using encrypted sensitive words. Page 199
2 2. SYSTEM ANALYSIS 2.1 EXISTING SYSTEM: Now a days, several methods are used for communicating secret messages for defense purposes or in order to ensure the privacy of communication between two parties. So, information is hidden in away that prevent its defection. Techniques to hide valuable information with in seemingly harmless messages have been widely used for centuries. The actual information is not maintained in its original format is known as cryptography Typically, there we have to use the appropriate when encryption is not available. In this, new cover mediums for hiding the data in communication are constantly being proposed, from the classical image files (such as bmp, gif and jpg formats) and from audio files(i.e. wav and mp3),text and html documents, s disguised as spam, TCP/IP packets, executables programs, DNA strands etc..some of the methods used for privacy communication are the use of invisible links; convert channels are some of the existing systems that are used to convey the messages. Audio and video files have massive levels of imperceptible noise. Changing tone bits and the pause duration between notes are great places to hide. Data hiding techniques for written text change spacing and the placement individual characters. Even large hard drivers on PCs can be used to hide the data. File system like FAT or NTFS allocated blocks for storage. Most of the time these blocks have unused space where secret messages can be stored ADVANTAGE OF EXISTING SYSTEM The user can Record the Voice and encrypt the message in to that wave file. It supports Watermarking methods to Encode DISADVANTAGE OF EXISTING SYSTEM: Non Provision of encryption Key. Length of is Limited to 500. Consume much time to encode and decode. 2.2 PROPOSED SYSTEM In this paper we are CREATING AN IMAGE USING ENCRYPTED SENSITIVE WORDS. For the hacker it s very difficult to find the message. The proposed system is more users friendly and flexible. Data can be used in any form. More accurate result is produced. Fast and secure accesses to data are possible. Compression option is used because large amount of data to be send ADVANTAGE OF PROPOSED SYSTEM Save Time and Money. Reduce the Response Time. Page 200
3 Easy to Use. Flexible and Stable. That it can be used to secretly transmit messages without the fact of the transmission being discovered. The Secret Message contains a picture. 3. MAIN FEATURES: Steps: a) Type the secret message, Encrypt the message by using asymmetric RSA algorithm b) Select an image. c) Now the computer have to draw an image using encrypted sensitive words(figure-1), By using pixel mapping method. d) By using the decryption key the receiver extract the secret message from The sensitive word image. Figure-1 This is an example of the image with sensitive words. This image is full of words. For the first time viewer, this is just an image. The person will not recognize the words used to draw this image. After coloring the image it is like (figure-2) So it is very difficult to recognize the words used to create that image. Page 201
4 This is an Innovative and efficient technology to hind the secret message by creating an image. Figure Data size estimation Each drown image is taken data source for Data Hiding. First the maximum size of the hiding data is calculated. The size of the image is and modified it to On further calculations we get786,432,000 chars that can be embed. We have followed the following equation mentioned below: (((Width height) 3 bits)/8 bits)/3 bytes 3000 frames = char/video.and the image Bitmap size = Step of calculations the maximum of hiding information: a. Each frame consist = = 2, 097, 152 Pixels. b. Each pixel include 3 bytes (One byte we use single bit for encode data hiding) R = 1bit, G = 1 bit and B = 1 bit. c. Each frame = Pixels 3 = 2, 097, = 62, 915, 456 bits d. Each frame we can maximum hiding data is 62, 915, 456 bits/8 bits = 786, 432 bytes. Page 202
5 e. If this video 3000 frames = 786, = 2, , 000 bytes (1 bytes = 1Character). f. For 1 Character of Unicode we need 3 bytes/1 character of Unicode = 2, ,000 bytes/3 =786, 432, 000 chars. 4. SYSTEM SPECIFICATION 4.1 SOFTWARE SPECIFICATION: OPERATING SYSTEM : Windows 7 FRONT END : Microsoft visual studio.net 2010 CODING LANGUAGE : C#.Net 4.2 HARDWARE SPECIFICATION: SYSTEM : Intel core i5 HARD DISK : 500GB MONITOR : 15 VGA colour monitor. MOUSE : Logitech RAM : 4 GB KEYBOARD : 110 keys enhanced. 5. PROJECT DESCRIPTION 5.1 PROBLEM DEFINITION The problem in the existing system is the data hide behind the Image. In this paper we are drawing or creating an image using encrypted sensitive words. The encryption done by using RSA algorithm which is been more secured, so it will be very difficult to decrypt by the hacker. 5.2 OVERVIEW OF THE PROJECT In this paper the encryption done by using RSA algorithm and the computer drawing or creating an image using encrypted sensitive words. which is been more secured, so it will be very difficult to decrypt by the hacker. 5.3 RSA ALGORITHM: RSA is an Internet encryption and authentication system that uses an algorithm developed in 1977 by Ron Rivest, Adi Shamir, and Leonard Adleman. The RSA algorithm is the most commonly used encryption and authentication algorithm and is included as part of the Web browsers from Microsoft and Netscape. It's also part of Lotus Notes, Intuit's Quicken, and many other products. The encryption system is owned by RSA Security. The company licenses the algorithm technologies and also sells development kits. The technologies are part of existing or proposed Web, Internet, and computing standards How the RSA System Works The mathematical details of the algorithm used in obtaining the public and private keys Page 203
6 are available at the RSA Web site. Briefly, the algorithm involves multiplying two large prime numbers (a prime number is a number divisible only by that number and 1) and through additional operations deriving a set of two numbers that constitutes the public key and another set that is the private key. Once the keys have been developed, the original prime numbers are no longer important and can be discarded. Both the public and the private keys are needed for encryption decryption but only the owner of a private key ever needs to know it. Using the RSA system, the private key never needs to be sent across the Internet. The private key is used to decrypt text that has been encrypted with the public key. Thus, if I send you a message, I can find out your public key (but not your private key) from a central administrator and encrypt a message to you using your public key. When you receive it, you decrypt it with your private key. In addition to encrypting messages (which ensures privacy), you can authenticate yourself to me (so I know that it is really you who sent the message) by using your private key to encrypt a digital certificate. When I receive it, I can use your public key to decrypt it Communication using RSA Cryptographic methods cannot be proven secure. Instead, the only test is to see if someone can figure out how to decipher a message without having direct knowledge of the decryption key. The RSA method's security rests on the fact that it is extremely difficult to factor very large numbers. If 100 digit numbers are used for p and q, the resulting n will be approximately 200 digits. The fastest known factoring algorithm would take far too long for an attacker to ever break the code. Other methods for determining d without factoring n are equally as difficult. Any cryptographic technique which can resist a concerted attack is regarded as secure. At this point in time, the RSA algorithm is considered secure. 6. IMPLEMENTATION STEPS INVOLVE: 6.1 ENCYPTION OF MESSAGE: In this paper first encrypt the secret message using asymmetric RSA algorithm. Using an encryption key (e,n), the algorithm is as follows: 1. Represent the message as an integer between 0 and (n-1). Large messages can be broken up into a number of blocks. Each block would then be represented by an integer in the same range. 2. Encrypt the message by raising it to the eth power modulo n. The result is a ciphertext message C. Page 204
7 3. To decrypt ciphertext message C, raise it to another power d modulo n The encryption key (e,n) is made public. The decryption key (d,n) is kept private by the user. How to Determine Appropriate Values for e, d, and n 1. Choose two very large (100+ digit) prime numbers. Denote these numbers as p and q. 2. Set n equal to p * q. 3. Choose any large integer, d, such that GCD(d, ((p-1) * (q-1))) = Find e such that e * d = 1 (mod ((p-1) * (q-1))). 6.2 CREATING AN IMAGE: A message, either encrypted or unencrypted, Then using pixel mapping method the system will draw a image using the encrypted sensitive and transmitted over the Internet, a CD or DVD, or any other medium. That is by selecting the pixels from another image and maps the pixel for drawing an encrypted sensitive word. this module is concerned with the creating an image using encrypted sensitive words. Here we are converting the message or plain text in to cipher text format using RSA algorithm. Using RSA the message will be in the cipher text format with the help of public key. The Rivest-Shamir-Adelman (RSA) algorithm is one of the most popular and secure public-key encryption methods. The encrypted words are can t understand by the peoples very easily. 7. ARCHITECTURAL DESIGN: Page 205
8 8. CONCLUSION In this paper I propose a data hiding technique by creating or drawing an image using encrypted sensitive word. It is a new innovative methodology to hide the data. Main intension is to provide proper protection on data during transmission. For the accuracy of the corrects message output that extract from source we can use a tools for comparison and statistical analysis can be done. Its main advantage is that it is a blind scheme and its affect on image quality or coding efficiency is almost negligible. It is highly configurable, thus it may result in high data capacities. Finally, it can be easily extended, resulting in better robustness, better data security and higher capacity. REFERENCES 1) Image Steganography and Steganalysis Using Pixel Mapping Method.International Journal of Engineering Research & Technology(IJERT)Vol. 2 Issue 11, November ) Steganography Algorithm to Hide Secret Message inside an Image. 3) Data Hiding in Video Arup Kumar Bhaumik1, Minkyu Choi2, Rosslin J.Robles3, and Maricel O.Balitanas4 International Journal of Database Theory and ApplicationVol. 2, No. 2, June ) A Robust Algorithm for Text Detection in Images Julinda Gllavata1, Ralph Ewerth1 and Bernd Freisleben1,2 1SFB/FK 615, University of Siegen, D Siegen, Germany 2Dept. of Math. & Computer Science, University of Marburg, D Marburg, Germany juli, ewerth. 5) Image Steganography using DWT and Blowfish Algorithms 1Mrs.Archana S. Vaidya, 2Pooja N. More., 3Rita K. Fegade., 4Madhuri A.Bhavsar., 5Pooja V. Raut. 1Asst. Prof. Department of Computer Engg.GES s R. H. Sapat College of Engineering, Management Studies and Research, Nashik (M.S.), INDIA. BIOGRAPHY Page 206
9 Powered by TCPDF ( International Journal of Advanced Research in Ms RESHMI.R.V CSI COLLEGE OF ENGINEERING ANNA UNIVERSITY THE NILGIRIS. Page 207
A Data Hiding Model for Image Steganography Using Primes: Towards Data Security
International Journal of Computational Engineering & Management, Vol. 15 Issue 3, May 2012 www..org 1 A Data Hiding Model for Image Steganography Using Primes: Towards Data Security Mamatha.T Assistant
More informationAssignment 9 / Cryptography
Assignment 9 / Cryptography Michael Hauser March 2002 Tutor: Mr. Schmidt Course: M.Sc Distributed Systems Engineering Lecturer: Mr. Owens CONTENTS Contents 1 Introduction 3 2 Simple Ciphers 3 2.1 Vignère
More information[2014] Steganography Using Prime Technique. Vinam Tomar. Kamal Saluja. Authors. Guided By-
Steganography Using Prime Technique Authors Vinam Tomar Guided By- Kamal Saluja Ganga Technical Campus, Soldha Email-vinamtomar@gmail.com Abstract Steganography is the art and science of communicating
More informationCryptography. Cryptography is much more than. What is Cryptography, exactly? Why Cryptography? (cont d) Straight encoding and decoding
Copyright 2000-2001, University of Washington Cryptography is much more than Cryptography Cryptography systems allow 2 parties to communicate securely. The intent is to give privacy, integrity and security
More informationCryptography in Lotus Notes/Domino Pragmatic Introduction for Administrators
Cryptography in Lotus Notes/Domino Pragmatic Introduction for Administrators Belfast, 11-Nov-2010 Innovative Software Solutions. Thomas Bahn - graduated in mathematics, University of Hannover - developing
More informationROBUST VIDEO DATA HIDING USING FORBIDDEN ZONE DATA HIDING AND SELECTIVE EMBEDDING
ROBUST VIDEO DATA HIDING USING FORBIDDEN ZONE DATA HIDING AND SELECTIVE EMBEDDING ABSTRACT: Video data hiding is still an important research topic due to the design complexities involved. We propose a
More informationA nice outline of the RSA algorithm and implementation can be found at:
Cryptography Lab: RSA Encryption and Decryption Lab Objectives: After this lab, the students should be able to Explain the simple concepts of encryption and decryption to protect information in transmission.
More informationSTEGANOGRAPHY: THE ART OF COVERT COMMUNICATION
Journal homepage: www.mjret.in STEGANOGRAPHY: THE ART OF COVERT COMMUNICATION Sudhanshi Sharma 1, Umesh Kumar 2 Computer Engineering, Govt. Mahila Engineering College, Ajmer, India 1 sudhanshisharma91@gmail.com,
More informationCryptography Symmetric Cryptography Asymmetric Cryptography Internet Communication. Telling Secrets. Secret Writing Through the Ages.
Telling Secrets Secret Writing Through the Ages William Turner Department of Mathematics & Computer Science Wabash College Crawfordsville, IN 47933 Tuesday 4 February 2014 W. J. Turner Telling Secrets
More informationNetwork Security Issues and Cryptography
Network Security Issues and Cryptography PriyaTrivedi 1, Sanya Harneja 2 1 Information Technology, Maharishi Dayanand University Farrukhnagar, Gurgaon, Haryana, India 2 Information Technology, Maharishi
More informationSecurity+ Guide to Network Security Fundamentals, Third Edition. Chapter 11 Basic Cryptography
Security+ Guide to Network Security Fundamentals, Third Edition Chapter 11 Basic Cryptography Objectives Define cryptography Describe hashing List the basic symmetric cryptographic algorithms 2 Objectives
More informationCryptography (DES+RSA) by Amit Konar Dept. of Math and CS, UMSL
Cryptography (DES+RSA) by Amit Konar Dept. of Math and CS, UMSL Transpositional Ciphers-A Review Decryption 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Encryption 1 2 3 4 5 6 7 8 A G O O D F R I E N D I S A T R E
More informationSmart Data Encryption And Transfer : Steganographic tool for hiding data A JAVA based open source application program
Smart Data Encryption And Transfer : Steganographic tool for hiding data A JAVA based open source application program K. Jayamalini 1, Shashank Dubey 2, Ashish Singh 3, Geetesh Tiwari 4, Gaurav Singh 5
More informationDavenport University ITS Lunch and Learn February 2, 2012 Sneden Center Meeting Hall Presented by: Scott Radtke
Davenport University ITS Lunch and Learn February 2, 2012 Sneden Center Meeting Hall Presented by: Scott Radtke A discussion on the mathematics behind coding and decoding using RSA Public-Key Cryptography.
More informationPublic Key Cryptography
graphy CSS322: Security and Cryptography Sirindhorn International Institute of Technology Thammasat University Prepared by Steven Gordon on 29 December 2011 CSS322Y11S2L07, Steve/Courses/2011/S2/CSS322/Lectures/rsa.tex,
More informationCryptography and Network Security. Saint Leo University. COM 450- Network Defense and Security. Instructor: Dr. Omar.
Saint Leo University COM 450- Network Defense and Security Instructor: Dr. Omar Group members: Ivanna, Tracey, Romario, Chevon March 13, 2018 Abstract This paper will look at different aspects of Cryptography,
More informationDigital Image Steganography Techniques: Case Study. Karnataka, India.
ISSN: 2320 8791 (Impact Factor: 1.479) Digital Image Steganography Techniques: Case Study Santosh Kumar.S 1, Archana.M 2 1 Department of Electronicsand Communication Engineering, Sri Venkateshwara College
More informationPublic Key Cryptography and RSA
Public Key Cryptography and RSA Major topics Principles of public key cryptosystems The RSA algorithm The Security of RSA Motivations A public key system is asymmetric, there does not have to be an exchange
More informationCRYPTOGRAPHY. BY, Ayesha Farhin
CRYPTOGRAPHY BY, Ayesha Farhin Overview Introduction Types Advantages n Disadvantages Future Developments Bibliography Introduction Cryptography considered as a branch of both mathematics and computer
More informationCSCI 454/554 Computer and Network Security. Topic 5.2 Public Key Cryptography
CSCI 454/554 Computer and Network Security Topic 5.2 Public Key Cryptography Outline 1. Introduction 2. RSA 3. Diffie-Hellman Key Exchange 4. Digital Signature Standard 2 Introduction Public Key Cryptography
More informationOutline. CSCI 454/554 Computer and Network Security. Introduction. Topic 5.2 Public Key Cryptography. 1. Introduction 2. RSA
CSCI 454/554 Computer and Network Security Topic 5.2 Public Key Cryptography 1. Introduction 2. RSA Outline 3. Diffie-Hellman Key Exchange 4. Digital Signature Standard 2 Introduction Public Key Cryptography
More informationLSB Based Audio Steganography Using Pattern Matching
ISSN: 359-0040 Vol 2 Issue, November - 205 LSB Based Audio Steganography Using Pattern Matching Mr Ratul Choudhury Student, Dept of Computer Sc & Engg Dept University of Calcutta Kolkata, India ratulchowdhury@iemcalcom
More informationIntroduction to Cryptography and Security Mechanisms. Abdul Hameed
Introduction to Cryptography and Security Mechanisms Abdul Hameed http://informationtechnology.pk Before we start 3 Quiz 1 From a security perspective, rather than an efficiency perspective, which of the
More informationOutline. Public Key Cryptography. Applications of Public Key Crypto. Applications (Cont d)
Outline AIT 682: Network and Systems Security 1. Introduction 2. RSA 3. Diffie-Hellman Key Exchange 4. Digital Signature Standard Topic 5.2 Public Key Cryptography Instructor: Dr. Kun Sun 2 Public Key
More informationASYMMETRIC CRYPTOGRAPHY
ASYMMETRIC CRYPTOGRAPHY CONTENT: 1. Number Theory 2. One Way Function 3. Hash Function 4. Digital Signature 5. RSA (Rivest-Shamir Adleman) References: 1. Applied Cryptography, Bruce Schneier 2. Cryptography
More informationBit Adjusting Image Steganography in Blue Channel using AES and Secured Hash Function
Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320 088X IMPACT FACTOR: 6.017 IJCSMC,
More informationDIGITAL STEGANOGRAPHY 1 DIGITAL STEGANOGRAPHY
DIGITAL STEGANOGRAPHY 1 DIGITAL STEGANOGRAPHY DIGITAL STEGANOGRAPHY 2 Abstract Steganography derives from a Greek word and means covered writing. It is a sector of computer information security. Cryptography
More informationA Detailed look of Audio Steganography Techniques using LSB and Genetic Algorithm Approach
www.ijcsi.org 402 A Detailed look of Audio Steganography Techniques using LSB and Genetic Algorithm Approach Gunjan Nehru 1, Puja Dhar 2 1 Department of Information Technology, IEC-Group of Institutions
More informationDr. Jinyuan (Stella) Sun Dept. of Electrical Engineering and Computer Science University of Tennessee Fall 2010
CS 494/594 Computer and Network Security Dr. Jinyuan (Stella) Sun Dept. of Electrical Engineering and Computer Science University of Tennessee Fall 2010 1 Public Key Cryptography Modular Arithmetic RSA
More informationKey Exchange. Secure Software Systems
1 Key Exchange 2 Challenge Exchanging Keys &!"#h%&'() & & 1 2 6(6 1) 2 15! $ The more parties in communication, the more keys that need to be securely exchanged " # Do we have to use out-of-band methods?
More informationSecurity. Communication security. System Security
Security Communication security security of data channel typical assumption: adversary has access to the physical link over which data is transmitted cryptographic separation is necessary System Security
More informationText Hiding In Multimedia By Huffman Encoding Algorithm Using Steganography
Text Hiding In Multimedia By Huffman Encoding Algorithm Using Steganography Madhavi V.Kale 1, Prof. Swati A.Patil 2 PG Student, Dept. Of CSE., G.H.Raisoni Institute Of Engineering And Management,Jalgaon
More informationStudy on data encryption technology in network information security. Jianliang Meng, Tao Wu a
nd International Workshop on Materials Engineering and Computer Sciences (IWMECS 05) Study on data encryption technology in network information security Jianliang Meng, Tao Wu a School of North China Electric
More informationA New Symmetric Key Algorithm for Modern Cryptography Rupesh Kumar 1 Sanjay Patel 2 Purushottam Patel 3 Rakesh Patel 4
IJSRD - International Journal for Scientific Research & Development Vol. 2, Issue 08, 2014 ISSN (online): 2321-0613 A New Symmetric Key Algorithm for Modern Cryptography Rupesh Kumar 1 Sanjay Patel 2 Purushottam
More informationLecture 6: Overview of Public-Key Cryptography and RSA
1 Lecture 6: Overview of Public-Key Cryptography and RSA Yuan Xue In this lecture, we give an overview to the public-key cryptography, which is also referred to as asymmetric cryptography. We will first
More information1.264 Lecture 28. Cryptography: Asymmetric keys
1.264 Lecture 28 Cryptography: Asymmetric keys Next class: Anderson chapters 20. Exercise due before class (Reading doesn t cover same topics as lecture) 1 Asymmetric or public key encryption Receiver
More informationSteganography using MATLAB
ABHIYANTRIKI Steganography using MATLAB An International Journal of Engineering & Technology (A Peer Reviewed & Indexed Journal) Vol. 3, No. 5 (May, 2016) http://www.aijet.in/ eissn: 2394-627X Srikant
More informationHiding of Random Permutated Encrypted Text using LSB Steganography with Random Pixels Generator
Hiding of Random Permutated Encrypted Text using LSB Steganography with Random Pixels Generator Noor Kareem Jumaa Department of Computer Technology Engineering Al-Mansour University College, Iraq ABSTRACT
More informationChapter 9 Public Key Cryptography. WANG YANG
Chapter 9 Public Key Cryptography WANG YANG wyang@njnet.edu.cn Content Introduction RSA Diffie-Hellman Key Exchange Introduction Public Key Cryptography plaintext encryption ciphertext decryption plaintext
More informationComputer Networks. Network Security and Ethics. Week 14. College of Information Science and Engineering Ritsumeikan University
Computer Networks Network Security and Ethics Week 14 College of Information Science and Engineering Ritsumeikan University Security Intro for Admins l Network administrators can break security into two
More informationCryptography MIS
Cryptography MIS-5903 http://community.mis.temple.edu/mis5903sec011s17/ Cryptography History Substitution Monoalphabetic Polyalphabetic (uses multiple alphabets) uses Vigenere Table Scytale cipher (message
More informationEncryption Details COMP620
Encryption Details COMP620 Encryption is a powerful defensive weapon for free people. It offers a technical guarantee of privacy, regardless of who is running the government It s hard to think of a more
More informationPublic Key Algorithms
Public Key Algorithms 1 Public Key Algorithms It is necessary to know some number theory to really understand how and why public key algorithms work Most of the public key algorithms are based on modular
More informationChannel Coding and Cryptography Part II: Introduction to Cryptography
Channel Coding and Cryptography Part II: Introduction to Cryptography Prof. Dr.-Ing. habil. Andreas Ahrens Communications Signal Processing Group, University of Technology, Business and Design Email: andreas.ahrens@hs-wismar.de
More informationKeywords Security, Cryptanalysis, RSA algorithm, Timing Attack
Volume 4, Issue 1, January 2014 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com Performance
More informationWhat did we talk about last time? Public key cryptography A little number theory
Week 4 - Friday What did we talk about last time? Public key cryptography A little number theory If p is prime and a is a positive integer not divisible by p, then: a p 1 1 (mod p) Assume a is positive
More informationIntroduction to Cryptography. Vasil Slavov William Jewell College
Introduction to Cryptography Vasil Slavov William Jewell College Crypto definitions Cryptography studies how to keep messages secure Cryptanalysis studies how to break ciphertext Cryptology branch of mathematics,
More informationSECRETLY CONCEALING MESSAGE USING ADVANCED IMAGE PROCESSING
International Journal of Engineering Research ISSN: 2348-4039 & Management Technology May-2017 Volume- 4, Issue-3 Email: editor@ijermt.org www.ijermt.org SECRETLY CONCEALING MESSAGE USING ADVANCED IMAGE
More informationThe Application of Elliptic Curves Cryptography in Embedded Systems
The Application of Elliptic Curves Cryptography in Embedded Systems Wang Qingxian School of Computer Science and Engineering University of Electronic Science and Technology China Introduction to Cryptography
More informationIMPORTANCE OF NUMBER THEORY IN CRYPTOGRAPHY
IMPORTANCE OF NUMBER THEORY IN CRYPTOGRAPHY Pawanveer Singh 1, Dr. Amanpreet Singh 2, Shelja Jhamb 3 1 Post Graduate Department of Mathematics, Lajpat Rai D. A. V. College Jagraon, (India) 2 Post Graduate
More informationEncryption Algorithms Authentication Protocols Message Integrity Protocols Key Distribution Firewalls
Security Outline Encryption Algorithms Authentication Protocols Message Integrity Protocols Key Distribution Firewalls Overview Cryptography functions Secret key (e.g., DES) Public key (e.g., RSA) Message
More informationHybrid Public Key Cryptosystem Combining RSA & DES Algorithms
Hybrid Public Key Cryptosystem Combining RSA & DES Algorithms Saba Khanum Department of Information Technology Maharaja Surajmal Institute of Technology, Janakpuri, New Delhi, India Bharti Sharma Department
More informationDistributed Systems. 26. Cryptographic Systems: An Introduction. Paul Krzyzanowski. Rutgers University. Fall 2015
Distributed Systems 26. Cryptographic Systems: An Introduction Paul Krzyzanowski Rutgers University Fall 2015 1 Cryptography Security Cryptography may be a component of a secure system Adding cryptography
More informationIntroduction to Cryptography and Security Mechanisms: Unit 5. Public-Key Encryption
Introduction to Cryptography and Security Mechanisms: Unit 5 Public-Key Encryption Learning Outcomes Explain the basic principles behind public-key cryptography Recognise the fundamental problems that
More informationVARIABLE RATE STEGANOGRAPHY IN DIGITAL IMAGES USING TWO, THREE AND FOUR NEIGHBOR PIXELS
VARIABLE RATE STEGANOGRAPHY IN DIGITAL IMAGES USING TWO, THREE AND FOUR NEIGHBOR PIXELS Anita Pradhan Department of CSE, Sri Sivani College of Engineering, Srikakulam, Andhra Pradesh, India anita.pradhan15@gmail.com
More informationCryptography. Seminar report. Submitted in partial fulfillment of the requirement for the award of degree. Of Computer Science
www.studymafia.org A Seminar report on Cryptography Submitted in partial fulfillment of the requirement for the award of degree Of Computer Science SUBMITTED TO: SUBMITTED BY: www.studymafia.com www.studymafia.com
More information06/02/ Local & Metropolitan Area Networks. 0. Overview. Terminology ACOE322. Lecture 8 Network Security
1 Local & Metropolitan Area Networks ACOE322 Lecture 8 Network Security Dr. L. Christofi 1 0. Overview As the knowledge of computer networking and protocols has become more widespread, so the threat of
More informationCryptography: Matrices and Encryption
Cryptography: Matrices and Encryption By: Joseph Pugliano and Brandon Sehestedt Abstract The focus of this project is investigating how to generate keys in order to encrypt words using Hill Cyphers. Other
More informationInformation and Communications Security: Encryption and Information Hiding
Short Course on Information and Communications Security: Encryption and Information Hiding Tuesday, 10 March Friday, 13 March, 2015 Lecture 10: Information Hiding Contents Covert Encryption Principles
More informationIssues in Information Systems Volume 18, Issue 2, pp , 2017
IMPLEMENTING ELLIPTIC CURVE CRYPTOGRAPHY USING MICROSOFT EXCEL Abhijit Sen, Kwantlen Polytechnic University, abhijit.sen@kpu.ca ABSTRACT Microsoft Excel offers a number of data manipulation tools that
More informationStegano-CryptoSystem for Enhancing Biometric-Feature Security with RSA
2011 International Conference on Information and Network Technology IPCSIT vol.4 (2011) (2011) IACSIT Press, Singapore Stegano-CryptoSystem for Enhancing Biometric-Feature Security with RSA Pravin M.Sonsare
More informationInternational Journal of Scientific Research and Reviews
Research article Available online www.ijsrr.org ISSN: 2279 0543 International Journal of Scientific Research and Reviews Asymmetric Digital Signature Algorithm Based on Discrete Logarithm Concept with
More informationInternational Journal of Advance Engineering and Research Development
Scientific Journal of Impact Factor (SJIF): 5.71 International Journal of Advance Engineering and Research Development Volume 5, Issue 03, March -2018 e-issn (O): 2348-4470 p-issn (P): 2348-6406 BATCH
More informationTopics. Number Theory Review. Public Key Cryptography
Public Key Cryptography Topics 1. Number Theory Review 2. Public Key Cryptography 3. One-Way Trapdoor Functions 4. Diffie-Helman Key Exchange 5. RSA Cipher 6. Modern Steganography Number Theory Review
More informationViability of Cryptography FINAL PROJECT
Viability of Cryptography FINAL PROJECT Name: Student Number: 0151677 Course Name: SFWR ENG 4C03 Date: April 5, 2005 Submitted To: Kartik Krishnan Overview: The simplest definition of cryptography is The
More informationAudio Contents Protection using Invisible Frequency Band Hiding Based on Mel Feature Space Detection: A Review
Journal Science ISSN: 39-7157, ISSN: 39-7157, 1 015 015 Audio Contents Protection using Invisible Frequency Band Hiding Based on Mel Feature Space Detection: A Review Shefali Rani1, Yogesh Kumar 1 (M.Tech
More informationChapter 7 Lab A: Exploring Encryption Methods
Chapter 7 Lab A: Exploring Encryption Methods Topology Objectives Part 1: (Optional) Build the Network and Configure the PCs Connect the PCs and configure IP addresses. Part 2: Decipher a Pre-encrypted
More informationScience & Technology (DCRUST), Sonepat
A Hybrid Approach for Data Encryption and Hema Arora 1, Anil Arora 2 1 Department of Computer ScienceGateway Institute of Engineering & Technology (GIET), Deenbandhu Chhotu Ram University of Science &
More informationDepartment of Computer Science and Engineering. CSE 3482 Introduction to Computer Security. Instructor: N. Vlajic Date: Mar 1, 2017
Department of Computer Science and Engineering CSE 3482 Introduction to Computer Security Instructor: N. Vlajic Date: Mar 1, 2017 Midterm Examination Instructions: Examination time: 75 min. Print your
More informationA SECURED SYMMETRIC KEY ENCRYPTION TECHNIQUE USING IMAGES AS SECRET KEYS
Volume 116 No. 6 2017, 149-153 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ijpam.eu A SECURED SYMMETRIC KEY ENCRYPTION TECHNIQUE USING IMAGES AS SECRET
More informationComputer Security. 08. Cryptography Part II. Paul Krzyzanowski. Rutgers University. Spring 2018
Computer Security 08. Cryptography Part II Paul Krzyzanowski Rutgers University Spring 2018 March 23, 2018 CS 419 2018 Paul Krzyzanowski 1 Block ciphers Block ciphers encrypt a block of plaintext at a
More informationOTP-Steg. One-Time Pad Image Steganography Using OTP-Steg V.1.0 Software October 2015 Dr. Michael J. Pelosi
OTP-Steg One-Time Pad Image Steganography Using OTP-Steg V.1.0 Software October 2015 Dr. Michael J. Pelosi What is Steganography? Steganography literally means covered writing Encompasses methods of transmitting
More informationSecured Way of Ciphering Text Using Audio Steganography
Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320 088X IMPACT FACTOR: 5.258 IJCSMC,
More informationSecrets & Lies, Knowledge & Trust. (Modern Cryptography) COS 116 4/20/2006 Instructor: Sanjeev Arora
Secrets & Lies, Knowledge & Trust. (Modern Cryptography) COS 116 4/20/2006 Instructor: Sanjeev Arora Cryptography: 1 :secret writing 2:the enciphering and deciphering of messages in secret code or cipher
More informationAn overview and Cryptographic Challenges of RSA Bhawana
An overview and Cryptographic Challenges of RSA Bhawana Department of CSE, Shanti Devi Institute of Technology & Management, Israna, Haryana India ABSTRACT: With the introduction of the computer, the need
More informationChapter 17: Information Science Lesson Plan
Lesson Plan For All Practical Purposes Binary Codes Mathematical Literacy in Today s World, 7th ed. Encoding with Parity Check Sums Cryptography Web Searches and Mathematical Logic 2006, W.H. Freeman and
More informationEncryption I. An Introduction
Encryption I An Introduction Reading List ADO and SQL Server Security A Simple Guide to Cryptography Protecting Private Data with the Cryptography Namespaces Using MD5 to Encrypt Passwords in a Database
More informationCS669 Network Security
UNIT II PUBLIC KEY ENCRYPTION Uniqueness Number Theory concepts Primality Modular Arithmetic Fermet & Euler Theorem Euclid Algorithm RSA Elliptic Curve Cryptography Diffie Hellman Key Exchange Uniqueness
More informationMulti-Level Encryption using SDES Key Generation Technique with Genetic Algorithm
www.ijecs.in International Journal Of Engineering And Computer Science ISSN:2319-7242 Volume - 3 Issue - 8 August, 2014 Page No. 7596-7576 Multi-Level Encryption using SDES Key Generation Technique with
More informationA Proposed Method for Cryptography using Random Key and Rotation of Text
Volume 6, No.2, March - April 2017 Mousumi Ghanti et al., International Journal of Advanced Trends in Computer Science and Engineering, 6(2), March - April 2017, 18-22 Available Online at http://www.warse.org/ijatcse/static/pdf/file/ijatcse03622017.pdf
More informationPublic Key Algorithms
Public Key Algorithms CS 472 Spring 13 Lecture 6 Mohammad Almalag 2/19/2013 Public Key Algorithms - Introduction Public key algorithms are a motley crew, how? All hash algorithms do the same thing: Take
More informationCHAPTER 6. LSB based data hiding with double Encryption. 6.1 Introduction
CHAPTER 6 LSB based data hiding with double Encryption 6.1 Introduction In image steganography, the amount of secret data that can be embedded depends on the method and the cover-image as capacity limitation
More informationAnalysis of Cryptography and Pseudorandom Numbers
ISSN: 2454-2377 Volume 2, Issue 2, June 2016 Analysis of Cryptography and Pseudorandom Numbers Richa Agarwal Student, M. Tech., Computer Science, Invertis University, Bareilly, India Abstract: With the
More informationSecure Encryption Using Armstrong Number,Color Code ASCII and Prime Number
Advances in Wireless and Mobile Communications. ISSN 0973-6972 Volume 10, Number 6 (2017), pp. 1257-1265 Research India Publications http://www.ripublication.com Secure Encryption Using Armstrong Number,Color
More informationFiltering. -If we denote the original image as f(x,y), then the noisy image can be denoted as f(x,y)+n(x,y) where n(x,y) is a cosine function.
Filtering -The image shown below has been generated by adding some noise in the form of a cosine function. -If we denote the original image as f(x,y), then the noisy image can be denoted as f(x,y)+n(x,y)
More informationNETWORK SECURITY & CRYPTOGRAPHY
Assignment for IT Applications in Management Project On NETWORK SECURITY & CRYPTOGRAPHY Course Instructor Submitted By: Mr. ANIL KUMAR ROHIT BARVE 2013240 Section E PGDM 2013-15 Table of Contents Chapter
More informationComputers and Security
The contents of this Supporting Material document have been prepared from the Eight units of study texts for the course M150: Date, Computing and Information, produced by The Open University, UK. Copyright
More informationA simple approach of Peer-to-Peer E-Cash system
A simple approach of Peer-to-Peer E-Cash system Mr. Dharamvir, Mr. Rabinarayan Panda Asst. Professor, Dept. of MCA, The Oxford College of Engineering Bangalore, India. Abstract-With the popularization
More informationApplied Cryptography and Computer Security CSE 664 Spring 2018
Applied Cryptography and Computer Security Lecture 13: Public-Key Cryptography and RSA Department of Computer Science and Engineering University at Buffalo 1 Public-Key Cryptography What we already know
More informationSanjay Agrawal Department of CEA, National Institute of Technical Teachers Training and Research, Bhopal, India
Volume 4, Issue 7, July 2014 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com Critical Analysis
More informationKurose & Ross, Chapters (5 th ed.)
Kurose & Ross, Chapters 8.2-8.3 (5 th ed.) Slides adapted from: J. Kurose & K. Ross \ Computer Networking: A Top Down Approach (5 th ed.) Addison-Wesley, April 2009. Copyright 1996-2010, J.F Kurose and
More informationkey distribution requirements for public key algorithms asymmetric (or public) key algorithms
topics: cis3.2 electronic commerce 24 april 2006 lecture # 22 internet security (part 2) finish from last time: symmetric (single key) and asymmetric (public key) methods different cryptographic systems
More informationComputer Security. Two main issues are current regarding security for computer communication systems
Computer Security Two main issues are current regarding security for computer communication systems Data encryption User authentication Encryption and authentication between single users can be performed
More informationBCA III Network security and Cryptography Examination-2016 Model Paper 1
Time: 3hrs BCA III Network security and Cryptography Examination-2016 Model Paper 1 M.M:50 The question paper contains 40 multiple choice questions with four choices and student will have to pick the correct
More informationChapter 3 Public Key Cryptography
Cryptography and Network Security Chapter 3 Public Key Cryptography Lectured by Nguyễn Đức Thái Outline Number theory overview Public key cryptography RSA algorithm 2 Prime Numbers A prime number is an
More informationDistributed Steganography
Distributed Steganography Background Steganography refers to any methodology used to hide a message (including text, sound, or picture) in a separate file. Most commonly text or an image is inserted into
More informationChapter 3 Traditional Symmetric-Key Ciphers 3.1
Chapter 3 Traditional Symmetric-Key Ciphers 3.1 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 3 Objectives To define the terms and the concepts of symmetric
More informationOther Uses of Cryptography. Cryptography Goals. Basic Problem and Terminology. Other Uses of Cryptography. What Can Go Wrong? Why Do We Need a Key?
ryptography Goals Protect private communication in the public world and are shouting messages over a crowded room no one can understand what they are saying 1 Other Uses of ryptography Authentication should
More informationFPGA IMPLEMENTATION OF INVISIBLE VIDEO WATERMARKING USING DWT TECHNIQUE
FPGA IMPLEMENTATION OF INVISIBLE VIDEO WATERMARKING USING DWT TECHNIQUE S.Sivasankari, Arasu Engineering College, Kumbakonam-612001 Sivasankari2324@gmail.com Abstract: Watermarking is a science of hiding
More informationBLOWFISH ALGORITHM ON ITS OWN CLOUD COMPUTER PERFORMANCE AND IMPLEMENTATION
132 International Journal of Research in Computer Applications And Robotics, x(x): xx-xx INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS ISSN 2320-7345 BLOWFISH ALGORITHM ON ITS
More information